Transparent Parts Manufacturing Services
Jiangzhi: Clear & Transparent Plastic Parts Manufacturer
At Jiangzhi, we manufacture custom clear and transparent plastic parts for applications that require excellent optical clarity, smooth surfaces, and consistent quality. Whether you need clear plastic injection molding for mass production or transparent prototypes for testing, we can provide the right manufacturing solution.
Producing high-quality clear plastic components requires precise mold design, optimized molding processes, and advanced mold polishing to achieve excellent transparency and minimize surface defects. We work with materials such as PC, PMMA, and PS to manufacture custom parts for camera covers, cosmetic packaging, display windows, 3D printer covers, light covers, and optical applications, supporting both prototype and volume production.
Transparent Materials Injection Molding Cases
PMMA Instrument Light Cover
A European medical instrument manufacturer needed transparent light covers for their diagnostic panel assemblies. Their previous supplier had recurring issues with surface haze and inconsistent dimensions, causing assembly line stoppages.
We addressed every stage known to cause failure in clear parts: PMMA dried at 80°C to prevent silver streaking, cavities polished to SPI A1 standard, gate placement keeping weld lines out of the optical zone, and temperature, pressure, and cooling tightly controlled batch to batch. Final inspection used directional lighting to catch any flow marks or cloudiness before shipment. The client has been in continuous production with us since, with zero part-related line stoppages.Transparent Plastic Material Comparison
Selecting the right transparent plastic material depends on optical clarity, impact resistance, heat resistance, surface durability, and application requirements. The most commonly used transparent injection molding materials include PC, PMMA, and PS, each offering different performance advantages. The following table compares commonly used transparent plastic materials
| Property | PC (Polycarbonate) | PMMA (Acrylic) | PS (Polystyrene) |
|---|---|---|---|
| Light Transmission | 88–90% | 92–93% | 88–90% |
| Impact Resistance | Excellent | Low / Brittle | Moderate |
| Optical Clarity | Very Good | Excellent | Good |
| Typical Applications | Automotive lenses, medical housings | Optical covers, display panels | Packaging, appliance panels |
| Relative Cost | High | Medium | Low |
Tips: PC is preferred for applications requiring high impact resistance and durability, while PMMA is commonly selected for superior optical clarity and surface appearance. PS is typically used in cost-sensitive applications where moderate transparency is acceptable.
PS Cover Panel
A home appliance manufacturer in Southeast Asia was developing a new product line that required PS cover panels with a clean appearance and precise snap-fit assembly. Although the previous supplier achieved acceptable dimensions during trial production, slight edge warpage appeared after production volumes increased, resulting in visible gaps between the panel and the housing.
After reviewing the project, we found that the issue was related to shrinkage variation across multiple mold cavities rather than the PS material itself. By optimizing packing pressure and cooling conditions for each cavity and improving mold polishing to reduce drag marks during ejection, we achieved stable dimensional consistency and a smooth cosmetic finish suitable for repeatable mass production.
PC Automotive Headlamp Lens
A German Tier-2 supplier had been struggling for months with flow marks and haze on their PC headlamp lenses. Scrap was above 18%, OEM deadlines were slipping, and their assembly line was backing up.
When they came to us, we pulled their process data and inspected the lenses. The issues were consistent — mold surface breaking down under PC's processing temperature, single-stage pressure unable to follow the lens geometry, and uneven cooling causing dimensional drift across cavities.
We upgraded to SPI A1 diamond polish, tuned multi-stage pressure profiles to the wall transitions, and rebalanced cooling cavity by cavity. First submission passed ECE and SAE optical certification. Scrap dropped to under 1.5%, tolerances held within ±0.05mm, and their OEM delivery schedule was back on track.Hard Coating for Surface Protection
AR Coating for Optical Enhancement
Spray Painting for Functional & Decorative Finishes
Silk Screen Printing for Identification & Branding
Ultrasonic Welding for Clean Assembly
Transparent Parts Across Industries
Transparent parts are widely used across various industries where clarity, precision, and durability are essential. They not only enhance aesthetic appeal but also provide functional benefits such as visibility, safety, and protection.
- Electronics: Device housings, display panels, protective covers.
- Automotive: Light covers, interior components, instrument panels.
- Medical & Healthcare: Protective shields, device components, lab equipment.
- Consumer Products: Household appliances, packaging, decorative components.
- Industrial Equipment: Machine guards, sight windows, control panels.
How We Build Plastic Clear Molded Parts?
These issues are usually caused by insufficient material drying, mold venting problems, improper gate design, or unstable injection temperatures and pressures. Optimizing the mold and process helps achieve clearer surfaces.
Yes. With proper resin drying, polished mold surfaces, controlled injection parameters, and a clean production environment, transparent parts can reach near optical-grade clarity with minimal or no bubbles.
Transparent plastics may yellow due to UV exposure, heat, or improper processing. We prevent this by using UV-resistant materials, controlling molding temperatures, and applying optional hard-coating or anti-yellowing additives to keep the parts clear for longer.
Yes. Thicker sections may increase haze, reduce clarity, and trap internal stress. Good part design, uniform wall thickness, and optimized molding conditions help maintain transparency.
Yes. We manufacture transparent plastic components according to your drawings or samples, including CNC prototypes, injection molding, polishing, hard-coating, and color customization.
